stringify.ts
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stringify.ts
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	import { Readable } from "stream";

	type basic = string \| number \| Readable \| null;
	export type Stringifiable =
	\| basic
	\| basic[]
	\| Promise<basic>
	\| Promise<basic[]>
	\| Promise<basic>[];

	export async function stringify(
	value: Stringifiable
	): Promise<string \| Readable> {
	value = await value;
	if (typeof value === "string" \|\| value instanceof Readable) {
	return value;
	}
	if (typeof value === "number") {
	return value.toString();
	}
	if (value === null) {
	return "";
	}
	return "";
	}